Public Transportation Times

Provide on demand schedule info for local public transportation services. Using the SF Bay Area as an example, include BART, MUNI, CalTrain, Ferry, AceRail and VTA. Provide this across the country/globe where applicable.

Source:

Each of these services should have an APIs that can be integrated to provide the respective schedules. If not public, I wouldn't think they would object to providing access in the interest of discovery.